<!-- 父级页面:控制除登录页以外所有子级页面共有的左侧菜单栏与顶部条 -->
<template>
  <div style="display: flex;">
    <div :style="{width:(isCollapse?'64px':'208px')}">
      <!-- 左侧菜单栏  -->
      <el-menu
        background-color="#3C82F5"
        style="width: 100%;height: 100vh"
        text-color="#fff"
        active-text-color="#ff0"
        unique-opened
        router
        :collapse="isCollapse"
        :collapse-transition="false">
<!--        左侧菜单栏顶部条-->
        <el-row style="padding-top: 10px;">
          <el-col :span="2"></el-col>
          <el-col :span="7" style="padding-left: 7px;">
            <el-avatar src="imgs/admin/logo.png" style="width: 35px;height: 35px;"></el-avatar>
          </el-col>
          <el-col :span="isCollapse ?0:13">
            <span style="color: #fff;font-weight: bold;position: relative;top: 8px;left: 2px">智慧车辆</span>
          </el-col>
        </el-row>
        <el-sub-menu index="1">
          <template #title>
            <el-icon style="font-size: 21px;"><User/></el-icon>
            <span>用户管理</span>
          </template>
          <el-menu-item index="/user">用户列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="2">
          <template #title>
            <el-icon style="font-size: 21px;"><Van/></el-icon>
            <span>车辆管理</span>
          </template>
          <el-menu-item index="/vehicle">车辆列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="3">
          <template #title>
            <el-icon style="font-size: 21px;"><Location/></el-icon>
            <span>电子围栏</span>
          </template>
          <el-menu-item index="/geofence">围栏管理</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="4">
          <template #title>
            <el-icon style="font-size: 21px;"><Place/></el-icon>
            <span>调度管理</span>
          </template>
          <el-menu-item index="/application">申请列表</el-menu-item>
          <el-menu-item index="/audit">调度审核</el-menu-item>
          <el-menu-item index="/distribute">车辆分配</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="5">
          <template #title>
            <el-icon style="font-size: 21px;"><MessageBox/></el-icon>
            <span>数据字典</span>
          </template>
          <el-menu-item index="/dict">字典管理</el-menu-item>
        </el-sub-menu>
      </el-menu>
    </div>
    <div :style="{width:(isCollapse?'calc(100% - 64px)':'calc(100% - 208px)')}">
      <!-- 右侧顶部条     -->
      <el-header style="padding-top: 10px;background-color: white">
        <el-row :gutter="10">
          <el-col :span="18">
            <el-icon style="font-size: 20px;" @click="isCollapse=!isCollapse"><Expand/></el-icon>
          </el-col>
          <el-col :span="6" style="position: relative">
            <el-dropdown trigger="click" style="position: absolute;right: 20px;">
    <span style="font-size:19px ;font-weight: bold;">{{ user.username }}
      <el-icon ><arrow-down /></el-icon>
    </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout()">退出登录</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col>
        </el-row>
<!--        面包屑导航-->
        <el-breadcrumb separator="/" style="position: relative;top: 20px">
          <el-breadcrumb-item>首页</el-breadcrumb-item>
          <el-breadcrumb-item v-for="item in breadcrumb">{{item}}</el-breadcrumb-item>
<!--          <el-breadcrumb-item>用户管理</el-breadcrumb-item>-->
<!--          <el-breadcrumb-item>用户列表</el-breadcrumb-item>-->
        </el-breadcrumb>
      </el-header>
      <!-- 右侧可变区域    -->
      <el-main style="height: 90vh;padding: 0;overflow-y: auto ">
        <router-view/>
      </el-main>
    </div>
  </div>
</template>
<script setup>
import {onMounted, ref} from "vue";
import {useRoute, useRouter} from "vue-router";

const isCollapse = ref(false);
const user = ref(getUser());
const logout = () => {
  if (confirm("确定要退出登录吗？")){
    localStorage.removeItem("user");
    user.value='';
    window.location.href = "/login";
  }
};

const breadcrumb = ref();
let map = {
  '/user': ['用户管理', '用户列表'],
  '/vehicle': ['车辆管理', '车辆列表'],
  '/geofence': ['电子围栏', '围栏管理'],
  '/application': ['调度管理', '申请列表'],
  '/audit': ['调度管理', '调度审核'],
  '/distribute': ['调度管理', '车辆分配'],
  '/dict': ['数据字典', '字典管理']
};
const route = useRoute();
const updateBreadcrumb = (route) => {
  breadcrumb.value = map[route.path] || ['用户管理', '用户列表'];
}
onMounted(()=>{
  updateBreadcrumb(route);
})
const router = useRouter();
router.beforeEach((to, from, next) => {
  updateBreadcrumb(to);
  next();
})
</script>